When did the Roman Republic end and the Roman Empire begin, according to most historians?

Explanation:

The Second Triumvirate was officially recognized by the Roman government in 43 BC. Some historians consider this to be the end of the Roman Republic. The Second Triumvirate ruled for ten years until 33 BC. However, it began to split up when Octavian removed Lepidus from power in 36 BC.

this isn't a question and if you're going to list things be kind and use commas.

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation